作业帮什么物理实验,目的,原理
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/05/01 05:05:02
什么物理实验,目的,原理
Static and Kinetic Friction
If you try to slide a heavy box resting on the floor,you may find it difficult to get the box moving.Static friction is the force that is acting against the box.If you apply a light horizontal push that does not move the box,the static friction force is also small and directly opposite to your push.If you push harder,the friction force increases to match the magnitude of your push.There is a limit to the magnitude of static friction,so eventually you may be able to apply a force larger than the maximum static force,and the box will move.The maximum static friction force is sometimes referred to as starting friction.We model static friction,Fstatic,with the inequality Fstatic ms N where ms is the coefficient of static friction and N the normal force exerted by a surface on the object.The normal force is defined as the perpendicular component of the force exerted by the surface.In this case,the normal force is equal to the weight of the object.
Static and Kinetic Friction
If you try to slide a heavy box resting on the floor,you may find it difficult to get the box moving.Static friction is the force that is acting against the box.If you apply a light horizontal push that does not move the box,the static friction force is also small and directly opposite to your push.If you push harder,the friction force increases to match the magnitude of your push.There is a limit to the magnitude of static friction,so eventually you may be able to apply a force larger than the maximum static force,and the box will move.The maximum static friction force is sometimes referred to as starting friction.We model static friction,Fstatic,with the inequality Fstatic ms N where ms is the coefficient of static friction and N the normal force exerted by a surface on the object.The normal force is defined as the perpendicular component of the force exerted by the surface.In this case,the normal force is equal to the weight of the object.
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